Needles in a haystack: Detrital zircon UPb ages and the maximum depositional age of modern global sediment
GR Sharman, MA Malkowski - Earth-Science Reviews, 2020 - Elsevier
The practice of using the youngest detrital grains from a sedimentary deposit to constrain its
depositional age has grown rapidly over the past two decades. Researchers that use the …
depositional age has grown rapidly over the past two decades. Researchers that use the …
The Ediacaran–Cambrian boundary: evaluating stratigraphic completeness and the Great Unconformity
S Shahkarami, LA Buatois, MG Mángano… - Precambrian …, 2020 - Elsevier
Abstract The Ediacaran–Cambrian transition was a time of marked biological and
sedimentary changes, representing a significant evolutionary breakthrough in Earth's …
sedimentary changes, representing a significant evolutionary breakthrough in Earth's …
Diachronous development of great unconformities before Neoproterozoic snowball Earth
RM Flowers, FA Macdonald… - Proceedings of the …, 2020 - National Acad Sciences
The Great Unconformity marks a major gap in the continental geological record, separating
Precambrian basement from Phanerozoic sedimentary rocks. However, the timing …
Precambrian basement from Phanerozoic sedimentary rocks. However, the timing …
Phanerozoic flooding of North America and the Great Unconformity
AR Tasistro-Hart, FA Macdonald - Proceedings of the …, 2023 - National Acad Sciences
The flooding record of North America has been used to infer patterns of global erosion and
sea level in deep time. Here, we utilize the geospatial dimension of the stratigraphic record …
sea level in deep time. Here, we utilize the geospatial dimension of the stratigraphic record …
Geochronological constraints on Neoproterozoic rifting and onset of the Marinoan glaciation from the Kingston Peak Formation in Death Valley, California (USA)
Abstract Death Valley (California, USA) hosts iconic Cryogenian snowball Earth deposits,
but the lack of direct geochronological constraints has permitted a variety of correlations and …
but the lack of direct geochronological constraints has permitted a variety of correlations and …
Neoproterozoic of laurentia
Neoproterozoic to Cambrian isolation of Laurentia during the breakup of Rodinia was
associated with multiple large igneous provinces, protracted multiphase rifting, and variable …
associated with multiple large igneous provinces, protracted multiphase rifting, and variable …
Redefining the Tonto Group of Grand Canyon and recalibrating the Cambrian time scale
We applied tandem U-Pb dating of detrital zircon (DZ) to redefine the Tonto Group in the
Grand Canyon region (Arizona, USA) and to modify the Cambrian time scale. Maximum …
Grand Canyon region (Arizona, USA) and to modify the Cambrian time scale. Maximum …
Hemispheric geochemical dichotomy of the mantle is a legacy of austral supercontinent assembly and onset of deep continental crust subduction
MG Jackson, FA Macdonald - AGU Advances, 2022 - Wiley Online Library
Oceanic hotspots with extreme enriched mantle radiogenic isotopic signatures—including
low 143Nd/144Nd indicative of subducted continental crust—are linked to plume conduits …
low 143Nd/144Nd indicative of subducted continental crust—are linked to plume conduits …
Global sea-level fall triggered Ediacaran–Cambrian unconformity in North China craton
Abstract The Great Unconformity that separates the Cambrian and the underlying
Proterozoic strata has been interpreted as recording a composite of multiple diachronous …
Proterozoic strata has been interpreted as recording a composite of multiple diachronous …
Zircon (U-Th)/He thermochronology reveals pre-Great Unconformity paleotopography in the Grand Canyon region, USA
Abstract The Great Unconformity is an iconic geologic feature that coincides with an
enigmatic period of Earth's history that spans the assembly and breakup of the …
enigmatic period of Earth's history that spans the assembly and breakup of the …